Systems and Methods for Payment at a Point of Sale

1. A system comprising: a point of sale device configured to: generate a transaction identifier that uniquely identifies a transaction between a merchant and a mobile computing device associated with a customer, send the transaction identifier to the mobile computing device via a first communication network, after receiving an authorization and an identifier of the mobile computing device, transmit the transaction identifier and the identifier of the mobile computing device to a merchant server computing device; the merchant server computing device configured to: transmit the transaction identifier together with the identifier of the mobile computing device to a financial institution computing device; and the financial institution computing device configured to: receive the transaction identifier and the identifier of the mobile computing device, send a confirmation request to the mobile computing device using the transaction identifier and the identifier of the mobile computing device, and when a confirmation is received from the mobile computing device in response to the confirmation request within a time period, transfer funds from a customer account to a merchant account via a second communication network.

2. The system of claim 1 , wherein the identifier of the mobile computing device comprises one of a telephone number.

3. The system of claim 1 , wherein the first communication network is a network with a range of less than ten feet.

4. The system of claim 3 , wherein the first communication network is a near field communication (NFC) radio communications link.

5. The system of claim 1 , wherein the mobile computing device comprises a virtual checkbook application, wherein the virtual checkbook application includes a check register interface that displays recent transactions and a running account balance that reflects the transfer of funds from the customer account to the merchant account.

6. The system of claim 1 , wherein the virtual checkbook application uses colors to indicate a change in the running account balance.

7. The system of claim 1 , wherein the financial institution computing device is further configured to notify the point of sale device of the completed transaction, and wherein the point of sale device is further configured to print a receipt.

8. The system of claim 1 , wherein the first communication network is different from the second communication network.

9. The system of claim 1 , wherein the financial institution computing device is further configured to: when the confirmation is not received from the mobile computing device in response to the confirmation request within the time period, send a second confirmation request to a second mobile computing device.

10. The system of claim 1 , wherein the financial institution computing device is further configured to receive configuration parameters associated with the confirmation request and the confirmation, wherein the configuration parameters include the time period by which the confirmation is to be received and a threshold amount of the transaction.

11. The system of claim 10 , wherein the financial institution computing device is further configured to when a confirmation is not received from the mobile computing device in response to the confirmation request within the time period, allow the transaction when the amount of the transaction is less than the threshold amount.

12. The system of claim 10 , wherein the financial institution computing device is further configured to when a confirmation is not received from the mobile computing device in response to the confirmation request within the time period, send a second confirmation request to the mobile computing device when the amount of the transaction is greater than the threshold amount.

13. A non-transitory computer-readable storage medium containing a set of instructions that, when executed by one or more processors, cause a machine to: generate a transaction identifier that uniquely identifies a transaction between a merchant and a mobile computing device associated with a customer; send the transaction identifier to the mobile computing device via a first communication network; and after receiving an authorization and an identifier of the mobile computing device, transmit the transaction identifier and the identifier of the mobile computing device to a merchant server computing device, wherein the merchant server computing device is configured to transmit the transaction identifier together with the identifier of the mobile computing device to a financial institution computing device, wherein the financial institution computing device configured to: receive the transaction identifier and the identifier of the mobile computing device, send a confirmation request to the mobile computing device using the transaction identifier and the identifier of the mobile computing device, and when a confirmation is received from the mobile computing device in response to the confirmation request within a time period, transferring funds from a customer account to a merchant account via a second communication network.

14. The non-transitory computer-readable storage medium of claim 13 , wherein the mobile computing device comprises a virtual checkbook application, wherein the virtual checkbook application includes a check register interface that displays recent transactions, and a running account balance that reflects the transfer of funds from the customer account to the merchant account.

15. The non-transitory computer-readable storage medium of claim 14 , wherein the virtual checkbook application uses colors to indicate a change in the running account balance.

16. The non-transitory computer-readable storage medium of claim 13 , wherein the financial institution computing device is further configured to notify the point of sale device of the completed transaction, and wherein the point of sale device is further configured to print a receipt.

17. The non-transitory computer-readable storage medium of claim 13 , wherein the first communication network is different from the second communication network.

18. The non-transitory computer-readable storage medium of claim 13 , wherein the financial institution computing device is further configured to: when the confirmation is not received from the mobile computing device in response to the confirmation request within a threshold period of time, send a second confirmation request to a second mobile computing device.

19. A method comprising: generating, by a point of sale device, a transaction identifier that uniquely identifies a transaction between a merchant and a mobile computing device associated with a customer; sending, by the point of sale device, the transaction identifier to the mobile computing device via a first communication network; and after receiving an authorization and an identifier of the mobile computing device, transmitting, by the point of sale device, the transaction identifier and the identifier of the mobile computing device to a merchant server computing device, wherein the merchant server computing device is configured to transmit the transaction identifier together with the identifier of the mobile computing device to a financial institution computing device, wherein the financial institution computing device configured to: receive the transaction identifier and the identifier of the mobile computing device, send a confirmation request to the mobile computing device using the transaction identifier and the identifier of the mobile computing device, when a confirmation is received from the mobile computing device in response to the confirmation request within a time period, transferring funds from a customer account to a merchant account via a second communication network, and wherein the first communication network is different from the second communication network.

20. The method of claim 19 , wherein the mobile computing device comprises a virtual checkbook application, wherein the virtual checkbook application includes a check register interface that displays recent transactions and a running account balance that reflects the transfer of funds from the customer account to the merchant account.